JPH03244922A - Heater - Google Patents

Abstract

PURPOSE:To prevent an operation of a manual operation mode from being carried out while going against the grain of a customer and further to prohibit the customer from getting an uncomfortable feeling by a method wherein in the event that a movable changing-over means is placed at an intermediate position, an automatic mode operation is preferentially carried out over the manual operation mode. CONSTITUTION:When an operation switch 7 is turned on, a micro-computer 28 discriminates of which either manual operation mode or automatic operation mode is set in response to ON or OFF of a lead switch 27 and then it performs an operation control in response to a result of discrimination. That is, in the event that a cover 24 is placed at an intermediate position between both setting parts 17 and 23 and the lead switch 27 is in its OFF state, the micro computer 28 discriminates that the automatic operation mode is set. In the event that the automatic operation mode is set, the micro-computer 28 compares a room temperature with a set temperature of 10 deg.C to 30 deg.C set by an Up-switch 19 or Down-switch 20, sets an amount of combustion at the burner in response to a temperature difference between the set temperature and the room temperature and performs a combustion.

Description

[Detailed Description of the Invention] B) Industrial Application Field This invention relates to a heating device that heats indoor air using a burner built into the heating device body, such as a hot air heating device or a radiant heating device. Regarding.

(B) Conventional technology In recent years, this type of heater compares the room temperature with a set temperature and adjusts the temperature so that the room temperature approaches the set temperature, as disclosed in Japanese Patent Application Laid-Open No. 60-2843. By automatically adjusting the amount of combustion in the bar + and controlling the burner combustion on and off, it is possible to achieve comfortable and precise room temperature control.

C) Problems to be Solved by the Invention By the way, many customers desire not only automatic operation as described above, but also manual operation in which they can set the combustion amount themselves. Therefore, in the heater disclosed in Japanese Utility Model Application Publication No. 60-47017, an automatic operation mode and a manual operation mode can be selected.

Selection of such an operation mode is usually performed using a slide type or rotary type changeover switch. However, when the changeover switch is in the intermediate position, the vehicle may be operated in the manual operation mode even if the automatic operation mode is intended to be selected. As a result, strong combustion and weak combustion occur in succession, causing discomfort to customers and causing unnecessary fuel consumption due to excessive heating.

This invention was made in view of the above facts,
To provide an economical and comfortable heating operation in a heating machine in which automatic operation mode and manual operation mode can be selected.

(d) Means for Solving the Problems In this invention, a burner that heats indoor air is built into the heater body, and an automatic operation mode that controls the combustion amount or combustion of this burner according to the room temperature and the set temperature is provided. , a heating device in which a manual operation mode for controlling the combustion amount of the burner to a set amount can be selected, and a movable switching means for setting the operation mode, and a movable switching means for setting the operation mode, and when there are m switching means, an automatic operation mode is selected. The control means executes the operation, executes the operation in the manual operation mode when the switching means is on the other side, and executes the operation in the automatic operation mode when the switching means is in the intermediate position.

(*) If the actuating movable switching means is in the intermediate position, automatic operation mode will be executed with priority over manual operation mode, and manual operation mode will be executed against the customer's will. There is no need to worry about causing discomfort to customers or wasting fuel.

(f) Example Hereinafter, embodiments of the present invention shown in the drawings will be described.

FIG. 1 shows a heater according to an embodiment of the present invention. This heater is generally called a fan heater.
The heater body (2) has an air intake (not shown) on the back and a hot air outlet (1) on the front, and a burner (3) and a blower fan (4) are built into the heater body (2). The indoor air flowing in from the heater (2) is heated by the burner (3) and discharged from the hot air outlet (1) together with the combustion gas from the burner (3). An operating section (5>) and a lid (6>) for putting in and taking out a quadrilateral tank (not shown) are provided.

As shown in FIGS. 2 to 5, the operation section (5) includes an operation section (5A) having an operation switch (7) and a time extension switch (8 switches) at the right end.

In addition, on the left side of this operation part (5A), there is a combustion amount setting switch (9) or 12) and a setting amount lamp (13).
A manual operation setting section (second setting section) (17) having a manual operation setting section (17) or (16) is provided.
The left A rule includes an automatic operation setting section (first setting section) having a timer switch (18), an up switch (19) and a down switch (20), a timer lamp (21) and a digital display (22). (23) is provided.

In addition, this operation part (5) has a sliding cover (24
) is provided. This cover (24>) has a size that covers either the manual operation setting section (17) or the automatic operation setting section (23), and both of these setting sections (17) (23>
It is slidably held between the In addition, the cover (24
) on the back side, a magnet (25) is attached to the right end. <26) is a circuit board to which the above-mentioned switches, lamps, etc. are connected, and is provided on the back side of the operating section (5). This circuit board (26) has a second cover (24).
The state shown in the figure (the cover (24) is
) is provided with a reed switch (27) that is turned on by a magnet (25).

FIG. 6 shows a control device for the above-mentioned heater.

In FIG. 6, <28) is a microcomputer, and the inputs 1 of this microcomputer (28) include an operation switch (7), a time extension switch (8), a combustion amount switch (9) to 12), timer switch <1
8〉, amplifier switch (19), down switch (20)
), a reed switch (27), and a room temperature sensor (29) are connected. Also, microcomputer (28)
On the output side, there is an electromagnetic pump (30) that supplies fuel (kerosene) to the burner (3), a burner fan (31) that supplies combustion air to the burner (3), a blower fan (4), and a set amount lamp (3). 13) or 16), timer lamp <21>
and a digital display (22) are connected.

As shown in FIG. 7, the microcomputer (28) mentioned above switches between manual operation mode or automatic operation depending on whether the reed switch (27) is turned on or off when the operation switch (7) is turned on. It determines which mode is set and performs operational control based on the determination result. That is, a cover (24) that also serves as a switching means covers the automatic operation setting section (23) as shown in FIG.
5), when the reed switch (27) is turned on, the microcomputer (28) determines that the manual operation mode is set. Also, cover〈2
4) covers the manual operation setting section 17) as shown in Fig. 3, or the cover (24) covers both setting sections (17) as shown in Fig. 4.
17) Located in the middle position of (23), reed switch 2
7) is off, the microcomputer (28
> is determined to be set to manual operation mode.

When the manual operation mode is set, the microcomputer 28) switches the combustion amount switch (9) or 12>
It is determined which one of the switches is pressed (boosting priority) and the combustion amount (4 levels from strong to slightly weak) corresponding to the operated switch is determined. Then, in order to obtain this amount of combustion, the electromagnetic pump (30) is operated at a predetermined rotation speed, and the burner fan (31>) is operated at a predetermined rotation speed, so that an air volume commensurate with the combustion amount is obtained. Operate the blower fan (4). At this time, press the combustion amount switch (
The set amount lamp (13) to 16) corresponding to 9) to 12) lights up to display which combustion amount is set.

On the other hand, when the automatic operation mode is set, the microcomputer (28) monitors the room temperature and the set temperature (10°C to 3°C) according to the up switch (19) or down switch (20).
0°C), and set the amount of combustion in the burner as shown in FIG. 8 according to the temperature difference between the set temperature and the room temperature. Then, the electromagnetic pump (30) is operated at a set rotation speed to obtain this combustion amount, and the burner fan (31) is operated at a set rotation speed.
) is operated at a set rotation speed, and the blower fan (4) is operated at a set rotation speed so as to obtain an air volume commensurate with the amount of combustion. Alternatively, the combustion at the burner (3>) may be turned on or off.

While the operation switch 7) is turned on, the timer lamp (18)
) is successfully pressed, the microcomputer (28
) allows the timer lamp (21) to be lit, and stops combustion if it is in progress. And up switch (19
) or after the timer time (within 24 hours) set by the down switch (20), the heating operation in the automatic operation mode described above is performed.

The heating operation in the manual operation mode and the automatic operation mode described above is terminated after three hours, and the heating operation in the timer mode is terminated after one hour. However, if the time extension switch (8) is pressed during heating operation, the operation will be extended for 3 hours from that point on.

The digital display (22) can be used in automatic operation mode or timer mode, and usually displays the room temperature detected by the room temperature sensor (29) digitally in two digits. In addition, the set temperature is displayed while operating the up switch (19) or down switch (20>), and the set temperature is displayed while operating the up switch (19) or down switch (20>). When you operate , the above-mentioned timer time is displayed digitally.

According to this embodiment, when the sliding cover (24) is located at an intermediate position between the manual operation setting section (17) and the automatic operation setting section (23), the microcomputer (28) operates in the automatic operation mode. This allows the customer to operate in the manual operation mode even though they have set the automatic operation mode, without making the customer feel hot or cold. 1. Comfortable heating operation can be performed. This prevents wasted fuel due to continuous strong combustion.In addition, unused operation modes are covered with a cover, so even though there are many setting switches, they are not used. You can perform setting operations without being confused by the operation mode switch, and there is no need to worry about erroneous operation, improving usability and safety.In addition, the cover (24) also serves as a switching means. Therefore, the operating mode can be set accurately while looking at the setting section (17023), and both operating modes can be easily selected without using a dedicated switching means.

(G) Effects of the Invention Since the present invention is configured as described above, it has an automatic operation mode in which the combustion amount is controlled according to the room temperature and the set temperature, and a manual operation mode in which the combustion amount is controlled to the set amount. If the switching means is in an intermediate position while allowing selection according to the customer's wishes, automatic operation mode operation will be performed in priority over manual operation mode operation, and operation in manual operation mode will be performed against the customer's will. Comfortable and economical heating operation can be performed without causing discomfort to customers or wasting fuel.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a heater showing an embodiment of the present invention, Fig. 2 is an enlarged explanatory view of the operating section when the cover is on the operation mode setting section side, and Fig. 3 is an illustration where the cover is on the manual mode setting section. Fig. 4 is an enlarged explanatory view of the operating unit when the cover is in the middle position, Fig. 5 is a sectional view of the operating unit, and Fig. 6 is the heater control device. FIG. 7 is a flowchart for explaining the operation of the control device, and FIG. 8 is a characteristic diagram showing the relationship between temperature difference and combustion amount in automatic operation mode. (2)...Heating machine body, (3)...Burner, <
24)...Ka/<-(JU exchange means), (2g)...
Microcomputer (control means).

Claims (1)

[Claims] (1) A burner that heats indoor air is built into the heater body, and there is an automatic operation mode that controls the burner's combustion amount or combustion according to the room temperature and set temperature, and the burner's combustion amount is controlled to the set amount. A heater that allows selection of a manual operation mode has a movable switching means for setting the operation mode, and a movable switching means for operating in the automatic operation mode when the switching means is on one side, and a movable switching means for setting the operating mode. 1. A heating machine characterized by comprising: control means for executing operation in a manual operation mode at certain times and for executing operation in an automatic operation mode when the switching means is in an intermediate position.